Find number abc
If 8b6c9 - c5348 = 533a find number abc. Multiple solutions may exist.Correct answers: 9
#brainteasers #math
Adding machineIn 1872, the first U.S. patent for an adding machine capable of printing totals and subtotals, called a "calculating machine," was issued to E.D. Barbour of Boston, Mass. However, it was not practical. (No. 133,188) |